CVE-2020-10593

HIGH

Tor <0.3.5.10, 0.4.x <0.4.1.9, 0.4.2.x <0.4.2.7 - DoS

Title source: llm
STIX 2.1

Description

Tor before 0.3.5.10, 0.4.x before 0.4.1.9, and 0.4.2.x before 0.4.2.7 allows remote attackers to cause a Denial of Service (memory leak), aka TROVE-2020-004. This occurs in circpad_setup_machine_on_circ because a circuit-padding machine can be negotiated twice on the same circuit.

References (4)

Core 4
Core References
Issue Tracking, Third Party Advisory x_refsource_misc
https://trac.torproject.org/projects/tor/ticket/33619
Third Party Advisory vendor-advisory x_refsource_gentoo
https://security.gentoo.org/glsa/202003-50
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00045.html
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00052.html

Scores

CVSS v3 7.5
EPSS 0.0122
EPSS Percentile 79.3%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-401
Status published
Products (3)
opensuse/backports_sle 15.0 sp1
opensuse/leap 15.1
torproject/tor 0.3.5 - 0.3.5.10
Published Mar 23, 2020
Tracked Since Feb 18, 2026